Home / 3,189.92-4,784.75-1,110.40

Finding the Fourth Proportional to 3,189.92, 4,784.75 and 1,110.40

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Solution

The fourth proportional to 3,189.92, 4,784.75 and 1,110.40 is: 1,665.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.92 : 4,784.75 = 1,110.40 : x
  2. Step 2: Convert to fraction form
    3,189.92/4,784.75 = 1,110.40/x
  3. Step 3: Cross multiply
    3,189.92x = 4,784.75 × 1,110.40
  4. Step 4: Simplify right side
    3,189.92x = 5,312,956.92
  5. Step 5: Solve for x
    x = 5,312,956.92/3,189.92
  6. Step 6: Final answer
    x = 1,665.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.